公开(公告)号：US3751956A

公开(公告)日：1973-08-14

申请号：US3751956D

申请日：1971-09-27

申请人： I P SPA SA

发明人： BLANCHI T

IPC分类号： B21D26/02 ,  B21D26/025 ,  B21D26/029 ,  B29C51/10 ,  B29C51/26

CPC分类号： B21D26/025 ,  B21D26/02 ,  B21D26/029 ,  B29C51/10 ,  B29C51/262

摘要： A fluid-dynamic press, in particular a hydraulic press, for the cold forming of sheet metal of thin thickness wherein the pressure application means acts directly upon the work piece, comprising a means for providing a packing on the pressure side of the work piece positioned to cooperate with an annular holding plate associated with a plurality of hydraulic clamping pistons on the opposite side of the workpiece, said holding plate and hydraulic clamping pistons being mounted in a removable die body mounted in the press and an integral part of the die. Consequently, the workpiece holding means and sealing means are specifically designed to fit each die body employed.